No matter how you clean your cat's teeth or what chews you give your dog, as they age most will need to have a dental cleaning performed on your vet.
If your gums bleed a person brush, you're either brushing too hard or could possibly have an impending gum disease issue. http://xn--4y2b62v2Gwht45d.com/bbs/board.php?bo_table=free&wr_id=83944